2 layers40 × 30 mm
2 layers
Centurion CPU6 reverse engineering
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 3
- Nets
- 21
- Pads
- 44
- Tracks, vias
- 73, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Apr 2022
- Updated
- 30 Dec 2025
Overview
CPUBR is an open-source printed circuit board by sjsoftware, from the sjsoftware/centurion-cpu6 repository on GitHub, published under the MIT licence. It is a 2-layer board with 3 parts on 21 nets, routed with 73 tracks and 0 vias.
Its parts include 2 ICs and 1 resistor.
README
README.mdcenturion-cpu6
- Schematic of the Centurion CPU6 board
- Schematic of the Centurion CPU5 boards
- Original plus some revisions
- Microcode disassembly (plus on wiki)
- Instruction reference (on wiki)
- Whatever I add in
Parts
3| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 74LS208 | Package_DIP:DIP-20_W7.62mm_Socket | U1 |
| 1 | 93L422 | Package_DIP:DIP-22_W10.16mm_Socket | U2 |
Questions
What parts does the CPUBR use?
3 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CPUBR KiCad files?
From the sjsoftware/centurion-cpu6 repository on GitHub, at the commit this page was made from: the board is kicad/CPU5/SRAM_Breakout/CPUBR.kicad_pcb and its schematic kicad/CPU5/CPU5A/CPU5PA/CPU5PA.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CPUBR design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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